第一天04-自定义子控制器

// LYTabBarController.m
// Created by younglee on **/**/**
// Copyright (c) **** younglee. All rights reserved.

#import "LYTabBarController.h"
#import "LYFirstViewController.h"
#import "LYSecondViewController.h"
#import "LYThirdViewController.h"
#import "LYFourthViewController.h"
@implementation LYTabBarController

- (void)initialize {
    NSMutableDictionary *normalAttrs = [NSMutableDictionary dictionary];
    normalAttrs[NSFontArrtibuteName] = [UIFont systemFontOfSize:12];
    normalAttrs[NSForegroundColorAttributeName] = [UIColor grayColor];

      NSMutableDictionary *selectedAttrs = [NSMutableDictionary dictionary];
      selecteddAttrs[NSFontAttributeName] = [NSFont systemFontOfSize:12];
      selectedAttrs[NSForegroundAttributeName] = [UIColor darkGrayColor];

      [[UIAppearance appearance] setAttributes:normalAttrs forState:UIControlStateNormal];
      [[UIAppearance appearance] setAttributes:selectedAttrs forState:UIControlStateSelected];

}
- (void) viewDidLoad {
    [super viewDidLoad];
    [self setupChildVc:[LYFirstViewController class] withTitle:@"item01" imageNamed:@"image01" selectedImageNamed:@"selectedImage01"];
    [self setupChildVc:[LYSecondViewController class] withTitle:@"item02" imageNamed:@"image02" selectedImageNamed:@"selectedImage02"];
    [self setupChildVc:[LYThirdViewController class] withTitle:@"item03" imageNamed:@"image03" selectedImageNamed:@"selectedImage03"];
    [self setupChildVc:[LYFourthViewController class] withTitle:@"item04" imageNamed:@"image04" selectedImageNamed:@"selectedImage04"];
}

- (void)setupChildVc:(Class)class withTitle:(NSString *)title imageNamed:(NSString *)imageName selectedImageNamed:(NSString *)selectedImageName {
    UIViewController *vc = [[class alloc] init];
    vc.tabBarItem.title = title;
    vc.tabBarItem.image = [UIImage imagedNamed:imageName];
    vc.tabBarItem.selectedImage = [UIImage imageNamed:selectedImageName];
    vc.view.backgroundColor = [UIColor colorWithRed:arc4random_uniform(100)/100.0 green:arc4random_uniform(100)/100.0 blue:arc4random_uniform(100)/100.0 alpha:1.0];
    [self addChildViewController:[[UINavigationController alloc] initWithRootViewController:vc]];
}

@end